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Ontario Reports Weekly Surge in Measles Cases as Nearly 70% of Canadians Back Vaccine Mandates

Drastic drops in childhood measles immunization since 2019 have driven growing public support for mandates.

Overview

  • Ontario logged 93 new measles infections last week, raising its outbreak total to 1,888 since October, while Alberta’s cumulative cases stand at 628.
  • Ontario hospitals have treated 141 measles patients so far, including 101 unvaccinated children and teenagers and 10 individuals in intensive care.
  • An Angus Reid Institute survey of 1,700 adults found 69% of Canadians now favour requiring proof of immunization for school and daycare attendance, up from 55% a year ago.
  • Coverage among seven-year-old children fell from just over 86% in 2019 to 76% in 2023, and parental vaccine hesitancy has climbed from 16% to 22%.
  • Only Ontario and New Brunswick mandate vaccination for school entry, and over a quarter of residents in Alberta, Saskatchewan and Ontario say they lack confidence in their provincial outbreak responses.